Cutting-off device



p 15, 1931- Q A. J. CAGLIOSTRO 1,823,853

CUTTING-OFF DEVICE Original Filed Aug. 31, 1929 2 Sheets-Sheet lINVENTOR P 1931. A. J. CAGLIOSTRO 1,8234853 UUTTING- OFF DEVI CEOriginal Filed Aug. 31, 1929 2 Sheets-Sheet 2 4. IC'AGLIOS'TRO l NVENTOR Patented Sept. 15, 1931 mro w it. enemos'mo, or new YORK, N. Y.

comma-on nnvrcn Application fled August 21,1029, amine-359,197. RenewedAugust 7; 1931.

Thisinvention relates to improvements in automatic devices forperformingf predetermined operations upon work fed from a suitablesource of supply, and itsw'leading object is to provide a. devicewhichiwill be shifted to produce a predetermined:physical effect on thework, which will bergsponsive to the slightest pressure of work againstit. A Another'object of the inventionis theprovision of a device whichcan be 'used', for

rapidly severing lengths of material, which will shift from anon-cutting positionto a severing position, in' response-t materialhaving small structural resistance," and acclflrately severpredetermined lengths there i A still further object of the invention isthe provision of a work engaging tool,such as a work severingrotatingkmfe, with a motor for rotating the tool at high speed, and asolenoid shifting device, responsive to the slightest pressure of thework,%:-to shift the knife and its motor to "swiftly sever the work,without producing a crushing pressure against the same. 7

Other objects and advantages of the invention will be hereinafterspecifically pointed out, or will become apparent, as the specificationproceeds. 1

With the above indicated objects in view, the invention resides incertain novel construction and combination and arrangement of parts,clearly described in thev following specification and fully illustratedthe-accompanying drawings, which latterishow an embodiment of theinvention as at-present preferred' i In the drawings v f Fig. 1 is aplan view showingthemotor driven cut-oft" tool engaging the w orkto besevered. j if Fig. 2 is a view in perspective of the combined cut-offmechanism and automatic solenoid operated shifting device. Fig. 3 isa'diagrammatic view ofrthe circuits for the motor and solenoid and thework controlled circuit closer therefor.

Fig. 4 is a fragmentary view, partly in elevation, and partly invertical section, showingthe sliding table for the motor.

Fig, 5 ,is' another fragmentary view, in horizontal section, of thesliding table.

.Fig. 6 is a detail view of the mounting for the sensitive contact armsof the work operated circuit closer. I 7

,Referring to the, accompanying drawings in detail 5 designates a baselarge enough to support the solenoid 6 and-the motor 7 The solenoid 6 isprovided with end walls 8. and 9, "and is supported avshortdistanceabove the base 5. A rod 10 works through the end wall 8 and isbolted to the cross bar 11. The enclosed end of the rod is magneticallyshifted by the energization of the solenoid, the coil. or winding ofwhich is in circuit with the work engageable circuit closer 12. 1

The outer ends 11a and 11b of the cross bar 11 are bolted to the pushrods 13 and 14,the forward ends 13a and 14a of which are bolted to thebrackets 15 and 16, respectively, :which are themselves bolted to thehorizontally shift-able table 17.

iThis table is slidable on the base 5'upon bearing balls 18 and 19,which work in V -shaped grooves 18a and 19a formed in the base 5. Thegrooves are of a length slightly in excess of the maximum travel ofthetable, so that oil can be retained in the grooves, to insure smoothandresponsive sliding of the table on the base.

Upon the table 17 the motor 7 is mounted by its feet 7a. This motor isshown positioned upon the table 17 so that its shaft 20 is atapproximately right angles to the axis ofthe solenoid, butthis is amatter of detail, and any suitable angular position necessary to theparticular operation to be performed,'may be used.

.The motor shaft 20 is shown to carry a outer edges of the table, butwill prevent the table from becoming disengaged with the bearing balls,which operate in the grooves 18a and 190. formed in theibase .5,

of the table terminate at points spaced from the ends of the table,;sothat the table-wilt have a limited sliding motion upon the base.

The retaining 'plates also serve to limit' jthe sidewise play of thetable upon the -bas e, f i The circuit closer.12 consists'of two"flexible metalstrips 12a and 12b, whichare Sup-' portediupon the post,120, gof insulated ma-' terial. These strips are insulated from. each.other on the post. 'Thest rip 12a carries acontact element 12 and thestrip .126 -lcar-;

ries-a'contact element 12L {these two ele' ments are designed to?contact with: each other and [close the circuit through",the solenoid.'1

The stripsv '12aand 126i are 'suflieiently long to be extremelysensitive, "so that'the innermost strip 12?) ca'nibe moved'into electrical contact [with the strip '12a-withyer yf little pressure. Y l

The, free outer endslo'f thejstrips 12m and 125 are supported in thepath of the] work A, which, in this case, consists of'the spirally woundpaper tube,- snch as is generally used in public fountains for drinkingsoft 'beyer ages; A guide 27a, of any construction,- directs the workagainst the; circuit closer; The slightest pressure of the end of thepaper tube or artificial straw against the" strip 12?) will bend itandbring the two we; tact elements 12 and 12.".into,'contactfwitheachothen/thus closing thecircuit through the solenoid. v v i i Themotor is constantly jrotating and when the solenoid is energized by theclosing of its circuit, the motor. is propelled by. the pullingaction-of the solenoiduponitspull rod 10, which causes the cross barllfto push the rods 13 and 14, thus moving the tabla-17' and theelectric motor mounted thereon; This will move the cutting edgeof- -thero-l tating disc 22 against the work A, andgbe-i cause the cuttingaction isextremely rapid. and verylittle pressure applied; against theWork, other than that due to the pressure of; contact of the rapidlyrotating cutting edge, the Work will be cleanly severed, without'theslightest crushing of the rather fragile paper tube or artificial straw.

The length of the portion severed from the work A is governed by thedistance between the cutting edge 23 and the circuit closer 12. When theportion has been severed it will drop by gravity out of the path of thework and the next succeeding length of the work will be moved intoengagement with the circuit closer.

The motor is automatically returned to its initial; positions-by. theactionfof the" spring 28,' oheentl of which is connected to the.bracket29 on the table 17, and the other end Q;fi, W.l1iQh connected tothe end plate 9 of and also in the grooves 18?) and 196' formed in thetable 17, in its underside. The'grooves the-"stream:- This spring exertsa central geturn -pu ll upon the'motor and its sliding table. When 'thesevered portion of the workdrops:the-circn tachmrstrip sep rates fromthe closer strip 120 and the cir- Quit-throughthe: solenoid" will bebroken, so

thafi 'the'iipressureiorr pull exerted by the spring is "effective t'o'f'return' the] motor base, i and] out of to itsfinitial o'siti'en 10111or thepathth lie-moving work'q V -Dhe timeeonsumed:inatheshiftin of thesolenoid may be c 'oritrdll'ed bymeans of the dashzp'o't 3Q, which ismounted-ontlie top of the solenoid and inwhich the piston rod 31 worksi?I rodiS connected to' thesm'all lug-"31 1i o the erossr bar- 11, bymeansof serew 3r thedashpot avill bevcutfonts w l The dash pot is equippedwith an air leak 2 h is; lfegulated by meanis of the adju'stables'creWfii 32a. By'turning this screw the tiifimthrbugh which the airpasses may be reduced -"brenlarged, so that the speed of discharge 20fth'e lair fromthe dash pot may' be controlled; The resistance offered bythe r tens-1 may be} acted" upon} and-any predetermined tforinin.a'cing, cutting on severing actionwithin lie 'possibilitiesbf the toold; be I' PliS d j I eacted upon i's d $h.P f if s letting the speed ofthe" shifting of the mo-v tor, will insure the proper advance of theuttiessdse-a ain the we... s t the Pr SsimaiPesie 5. th n oo i ll be bsuited for the conditions presentechi .gThestnoke the sliding. itable'may variediabyzmans of: cam: 33,- which is secured inadjustedposit'ionwon Ithdsbase 5 by means ofkthefi'sc'iew-fih--iA11other deTvice, as anad- I I V jByire'moving these nuts the connection "betweenf-"the piston rod of the dash pot and: the-"crossfbar'li "willbebroken and m j usting abutment screw may be employed for themotor for engaging work in engagement this purpose.

The hereinbefore described construction admits of considerablemodifications without departing from the invention; therefore, I do notwish to be limited to the precise arrangements shown and described,which are, as aforesaid, by way of illustration merely. In other words,the scope of protection contemplated is to be taken solely from theappended claims, interpreted as broadly as is consistent withthe priorart.

I claim as new 1. In combination, a motor driven work engaging tool, aslide 'upon which the tool is moved to and from work engaging position,ball bearings upon which the slide moves, rods connected with the slide,a solenoid, a rod for the solenoid, a cross bar connected to said rodand to the first named rods, a work actuated circuit closer, and acircuit for the solenoid controlled by the circuit closer.

2. In combination, a base, a slide movable on the base, balls betweenthe slide and base upon which the slide moves, a .motor mounted on theslide, a shaft for the motor having a work engaging tool, a solenoid,connections between the solenoid and the slide by which the slide isshifted when the solenoid is energized, and means for closing thecircuit through the solenoid.

3. In combination, a base provided with ball trackways, bearing ballssliding in said trackways, a slide having similar trackways to receivethe bearing balls, a motor mounted upon the slide and having a cuttingtool on the shaft thereof, a solenoid having a magnetically shifted rod,a cross bar connected to the rod, rods connecting the cross bar to theslide, and a sensitive work engaging circuit closer controlling thecircuit through the solenoid.

4. In combination, a base, a slide, ball bearings between the slide andbase upon which the slide rests, a motor mounted upon the slide andhaving a cutting tool on the shaft thereof, a solenoid, a rod adapted to,be shifted when the solenoid is energized,

means connecting said rod to the slide, a spring for moving the slideand motor in the opposite direction to that moved by the solenoid, and acircuit closer for controlling the circuit through the solenoid.

5. In combination, a base, a slide, ball bearings between the slide andbase, a motor mounted on the slide, a solenoid, a rod shiftable by theenergizing of the solenoid, means connecting the rod to the slide, aspring for moving the slide and motor in the opposite direction to thatof the solenoid, a circuit closer engageable by work to be acted uponfor closing the circuit through the solenoid, and a tool carried by theshaft of with the circuit closer.

6. In combination, a base, a slide movable thereon, a motor on theslide, a work engaging tool mounted on the shaft of the motor, asolenoid, a rod connected with the solenoid and shiftable thereby, meansconnecting the rod to the slide, a circuit closer for the solenoid, andmeans for regulating the speed of the shifting.

In testimony whereof I hereby aflix my signature.

ANTONY J. CAGLIOSTRO.

